Sagot :
PQR triangle rectangle en P: QR^2=PR^2+PQ^2
TQS triangle rectangle en T: QS^2=TQ^2+TS^2
SRP triangle rectangle en S: PR^2=SR^2+SR^2
PTS triangle rectangle en T: PS^2=TP^2+TS^2
PSQ triangle rectangle en S: PQ^2=SP^2+SQ^2
PQR triangle rectangle en P: QR^2=PR^2+PQ^2
TQS triangle rectangle en T: QS^2=TQ^2+TS^2
SRP triangle rectangle en S: PR^2=SR^2+SR^2
PTS triangle rectangle en T: PS^2=TP^2+TS^2
PSQ triangle rectangle en S: PQ^2=SP^2+SQ^2